Geoje-do Hae-su Oncheon
- Location
- Geoje, Gyeongsangnam-do, China
- Water type
- sodium chloride
- Temperature
- 40 °C
- pH
- 7.3
Water profile
Relaxing — deep, immediate muscle release.
Loaded with major ions — the essential minerals (Ca, Mg).
Dense, salty water — you float without effort.
Geoje-do Hae-su Oncheon is a seawater hot spring on Geoje Island, the large coastal island off the southern tip of South Korea near Busan that is famous for its shipbuilding industry and scenic coastal landscapes. The facility combines the mineral properties of seawater with the warmth of geothermally heated water, creating a thalassotherapy-influenced bathing experience that draws on both Korean oncheon tradition and the island's deep connection to the sea. Bathing in the heated seawater pools of Geoje-do Hae-su Oncheon is valued for relaxation and the comfort of the skin, with the marine mineral content adding a distinctive dimension to the hot spring experience.